GO1555 Voltage Controlled Oscillator
GO1555 Data Sheet
Key Features
•
•
•
•
•
•
Generates 1.485GHz or 1.485/1.001GHz signal for
Gennum ICs
Low power — 20mW less than GO1525
50Ω output impedance
Operates from a single 2.5V supply
8 pin tape on reel
Pb-free and RoHS Compliant
Description
The GO1555 is a self contained, miniature Voltage
Controlled Oscillator (VCO). It produces a clean
1.485GHz reference clock signal with low spurious
noise content. It is designed to drive 50Ω strip lines.
The VCO requires a single 2.5V supply and draws a
maximum of 8mA of current. It is packaged in a
miniature 8-pin proprietary surface mount package and
operates over the temperature range of -40°C to +85°C.
The GO1555 can be used in place of the older GO1525
VCO. Compared to the GO1525, the GO1555 saves
space, consumes less power and achieves better jitter
performance.
Note: Optimal performance of the GO1555 is achieved
using slightly different loop bandwidth component
values than those used with the GO1525.
This component and all homogeneous subcomponents
are RoHS compliant.
Applications
Other Products:
•
•
•
GS4915 ClockCleaner
™
GS1559, GS1560A, GS1561, GS9060
GS1531, GS1532, GS9062
Deserializers:
Serializers:
VCTR
VCC
STRIPLINE
STRIPLINE
OUT
OSCILLATOR CIRCUIT
GND
GO1555 Functional Block Diagram
40746 - 1
November 2006
1 of 12
www.gennum.com
GENNUM [ GENNUM CORPORATION ]
